Dennis Nilsson (born 21 March 1976) is a Swedish professional darts player who currently plays in World Darts Federation (WDF) and Professional Darts Corporation (PDC) events. In the past, he competed as a strongman, hence his nickname. He represented his country many times during the PDC World Cup of Darts, WDF World Cup and WDF Europe Cup. In total, he won five bronze medals in the team competition. He took part in the PDC World Darts Championship and WDF World Darts Championship.
Nilsson qualified for the 2012 PDC World Darts Championship, where he lost 4–2 to Japan's Haruki Muramatsu in the preliminary round. He represented Sweden with Magnus Caris in the 2012 PDC World Cup of Darts and together they were beaten 3–1 by Belgium in the second round, having defeated Japan in round one. He progressed through to the last 16 of the 2013 World Masters and was defeated 3–0 by Danny Noppert. A win over Steve Lennon saw Nilsson claim the 2016 Finnish Masters.